What is the pH of 6.00 M H2CO3 if it has 7% dissociation? SHOW YOUR WORK!!!

Answer:

(B) HNO3 + NaOH

Explanation:

Hello,

In this case, for the production of sodium nitrate a substance having the sodium as a cation should react with another substance having the nitrate anion. Moreover, neutralization reactions are carried out when bases react with acids, such is the case of nitric acid and sodium hydroxide:

\(NaOH+HNO_3\rightarrow NaNO_3+H_2O\)

Thus, the answer is (B) HNO3 + NaOH  as the other options involve salts rather than acids or bases as starting reactants.

Regards.

Answer:

• SCl6 [ Sulphur hexachloride ]

• Na2O [ Sodium oxide ]

Or:

• Na2O2 [ Sodium peroxide ]

Explanation:

→ Ionic bonding or electrovalent bonding is the type of bonding between a metal and a non metal, where a metal loses its Outermost electrons to the non metal in order to gain stability.

\(.\)

Answer:

2 -> O and Fe

Explanation:

The volume of Na2SiO3 that can react with 0.8000 grams of HF at STP is approximately 0.9663 liters.

To calculate the volume of Na2SiO3 (sodium silicate) that can react with 0.8000 grams of HF (hydrofluoric acid) at standard temperature and pressure (STP), we need to use stoichiometry and the ideal gas law.

Write the balanced chemical equation for the reaction between Na2SiO3 and HF:

Na2SiO3 + 6HF → Na2SiF6 + 3H2O

Determine the molar mass of HF:

The molar mass of HF is:

H (hydrogen) = 1.008 g/mol

F (fluorine) = 18.998 g/mol

So, the molar mass of HF = 1.008 + 18.998 = 20.006 g/mol

Convert the given mass of HF to moles:

Mass of HF = 0.8000 g

Molar mass of HF = 20.006 g/mol

Moles of HF = Mass of HF / Molar mass of HF

Moles of HF = 0.8000 g / 20.006 g/mol

Moles of HF = 0.03999 mol (rounded to five decimal places)

Use the stoichiometry of the balanced equation to determine the molar ratio between Na2SiO3 and HF:

From the balanced equation, we can see that 6 moles of HF react with 1 mole of Na2SiO3.

Use the ideal gas law to calculate the volume of Na2SiO3 at STP:

The ideal gas law is given by:

PV = nRT

where:

P = Pressure (at STP, P = 1 atm)

V = Volume

n = Number of moles of gas (in this case, moles of Na2SiO3)

R = Ideal gas constant (0.0821 L atm / mol K)

T = Temperature (at STP, T = 273.15 K)

Rearrange the formula to solve for volume (V):

V = nRT / P

Plugging in the values:

n = 0.03999 mol (from step 3)

R = 0.0821 L atm / mol K

T = 273.15 K (at STP)

P = 1 atm (at STP)

V = 0.03999 mol * 0.0821 L atm / mol K * 273.15 K / 1 atm

V = 0.9663 L (rounded to four decimal places)

Learn more about chemical reactions at:

https://brainly.com/question/11231920

#SPJ1

Koby needed to break the baking soda to provide a larger surface area for reaction thereby increasing the rate of reaction.

The term rate of reaction refers to how quickly or slowly a reaction proceeds. The surface area of solid reactants is an important factor that influences the rate of reactions when a solid reactant is involved.

Hence, Koby needed to break the baking soda to provide a larger surface area for reaction thereby increasing the rate of reaction.

Learn more about rate of reaction: https://brainly.com/question/8592296

The formula for Titanium (II) selenide is Ti₂Se.

We can determine the formula of a compound by the number of each of the elements that are combined together. So, for the compound,  Titanium (II) selenide, there are two atoms of Titanium and one atom of selenide.

To express this formula, we would then have;  Titanium (II) selenide is The density of this compound is Ti₂Se.5.89-5.91 g/cm3 and it has a dark gray appearance. So, the above is the formula.

Learn more about Titanium here:

https://brainly.com/question/11988718

#SPJ6

Answer:

Option D is correct = 8.12 grams of NaCl

Explanation:

Given data:

Moles of sodium chloride = 0.14 mol

Mass of sodium chloride = ?

Solution:

Formula:

Number of moles = mass of NaCl / Molar mass of NaCl

Molar mass of NaCl = 58 g/mol

Now we will put the values in formula.

0.14 mol = Mass of NaCl / 58 g/mol

Mass of NaCl = 0.14 mol  ×  58 g/mol

Mass of NaCl = 8.12 g of NaCl

Thus, 0.14 moles of NaCl contain 8.12 g of NaCl.

The result of the computation when you follow the steps is 1.699.

A logarithm is a mathematical function that represents the exponent or power to which a specific base must be raised to obtain a given number. In simpler terms, it answers the question: "To what power must we raise a base number to obtain a certain value?"

What you should do is that on your calculator, you could press the logarithm key and then put in the value that has been shown and then the result would be displayed on your calculator.

Learn more about logarithm:https://brainly.com/question/30226560

#SPJ1

The final concentration of the reactant of a first order reaction can be determined from the rate constant equation. The concentration of ammonium carbonate after 39 s will be 0.003 M.

Rate constant of a reaction is the rate of reaction when one molar concentration of the reactant is involved in the reaction. The expression for the rate constant k for first order reaction is :

k = 1/t ln (C0/Ct)

Where C0 be the initial concentration and Ct be the concentration after t seconds.

Given that C0 of ammonium nitrate = 0.957 M

rate constant = 0.196 /s

t = 39 s.

The concentration after 39 seconds is calculated as follows:

0.196 /s = 1/39s ln (0.957 M / Ct)

Ct = 0.957 / (ln⁻¹ (0.196 × 39))

    = 0.003 M.

Therefore, the concentration of ammonium carbonate after 39 seconds will be 0.003 M.

To find more on rate constant, refer here:

https://brainly.com/question/20305871

#SPJ1

Explanation:

c. h. o

66.7%. 11.1%. 22.2%

____. ____. ____

12. 1. 16

1.558. 11.1. 1.39. (divide by the smallest)

1. 8. 1

empirical formula=ch8o

Answer:

x/2

Explanation:

X = 2 molecules of H2

For 2 molecules of H2, there's only 1 molecule of O2. Meaning, there's twice the amount of H2, so O2 = x/2 molecules.

I hope I'm understanding this question right.

Answer:

55/350

Explanation:

because the answer is in the middle of 50and 400

The number of moles of \(Cl_2\) required to produce 250 grams of \(PCl_5\) would be 3 moles.

Phosphorus and chlorine react to form phosphorus pentachloride according to the following balanced equation:

\(2P + 5Cl_2 -- > 2PCl_5\)

From the equation of the reaction, the mole ratio of chlorine and phosphorus pentachloride is 5:2. Thus, 5 moles of chlorine will produce 2 moles of phosphorus pentachloride.

Recall that: mole = mass/molar mass

The molar mass of \(PCl_5\) is 208.24 g/mol

Thus, 250 g of \(PCl_5\) would be equivalent to:

mole = 250/208.24

         = 1.20 mol

2 mol \(PCl_5\) = 5 moles \(Cl_2\)

1.20 mol = 5 x 1.2/2

              = 3 moles

In other words, 250 g \(PCl_5\) will require 3 moles of \(Cl_2\).

More on stoichiometric problems can be found here: https://brainly.com/question/15047541

#SPJ1

Cations are formed through lose of electrons and thus, possess positive charge. Cations has smaller ionic radius than the neutral atom, because, they have are fewer  electrons and thus experience more nuclear attractive pull.

Cations are charged particles or ions formed by the lose of electrons from the neutral atom. Atoms acquires positive charge when they lose electrons and acquire negative charge by gaining electrons  and the negative ions are called anions.

For example, Na metal loses one electrons to form the cation Na+. Similarly Mg loses two electrons, to form Mg²⁺  ion. When these atoms loses electrons, the outermost shell can be emptied and the atomic radius shrinks to the penultimate shell.

Similarly, as the number of electrons reduces, the screening of electron from neighboring electrons reduces results in greater nuclear attractive pull and thereby the atomic radius shrinks to smaller than the neutral atom.

To find more cations, refer here:

https://brainly.com/question/28710872

#SPJ1

Explanation: The rate law for a chemical reaction is an equation that relates the rate of the reaction to the concentrations of the reactants. To determine the rate law for a reaction, experiments are typically conducted with different initial concentrations of the reactants and the initial rate of the reaction is measured.

From the data provided, it appears that the reaction is of the form X + Y → C. And the concentration of X and Y are varied in three trials and the corresponding Initial rate is measured.

In the first trial, [X] = 0.01 M and [Y] = 0.015 M, and the initial rate of the reaction is 7.83x10-5 M/s.

In the second trial, [X] = 0.01 M and [Y] = 0.03 M, and the initial rate of the reaction is 3.13x104 M/s.

In the third trial, [X] = 0.02 M and [Y] = 0.015 M, and the initial rate of the reaction is 1.57x10 M/s.

Given the data, the rate law for this reaction is OR = KX²M. This is because when the concentration of X is doubled, the rate of the reaction is quadrupled, which is consistent with a rate law of the form OR = k[X]^2.

Answer:

Wave speed is the distance a wave travels in a given amount of time, such as the number of meters it travels per second. Wave speed is related to wavelength and wave frequency by the equation: Speed = Wavelength x Frequency. This equation can be used to calculate wave speed when wavelength and frequency are known

Wave speed can be defined as the distance a wave travels in a given amount of time.

Wave Speed is described as the distance the wave travels in a particular amount of time, such as meters travel per second. The equation that is  expressed the wave speed is given as follows:

Wave speed= Distance/time

The faster wave travels a larger distance in the same amount of time. The waves meet the end of medium and also the presence of a different medium.

The speed of the wave is generally different in medium and also for the type of wave. The speed of waves depends on the type of medium in which it travels. Waves generally travel fastest through solid medium and slowest through gases.

The particles in the solid medium are closest together and farthest apart in gases phase. It takes longer for the energy distribution to travel through the medium from one particle to another when the particles are farther apart.

Learn more about wave speed, here:

https://brainly.com/question/28446485

#SPJ2

Becquerel  did not discover that the amount of exposure on the paper was proportional to the amount of uranium that was present in the rocks

The phenomenon of radioactivity was discovered by the French scientist Henri Becquerel in 1896 when he placed photographic paper in a drawer with some radioactive rocks.

We have to note that Becquerel did not discover that the amount of exposure on the paper was proportional to the amount of uranium that was present in the rocks hence the stetement is false.

Learn more about radioactivity: https://brainly.com/question/1770619?

Assuming a similar number of molecules, the matter that occupies the most space is gas. Option C is correct.

This is because gases have no definite shape or volume, and their molecules are spread out, moving freely in all directions. As a result, gases tend to occupy the entire volume of their container and expand to fill the available space. This is known as the "kinetic molecular theory" of gases.

In contrast, solids and liquids have a definite volume and shape. Solids have a fixed shape and their molecules are packed closely together, while liquids have a variable shape and their molecules are less closely packed. As a result, both solids and liquids occupy less space than gases.

It is worth noting that the volume of a solid or liquid can change under certain conditions, such as changes in temperature or pressure. However, even under these conditions, the space occupied by a solid or liquid is still less than that occupied by a gas. Option C is correct.

The complete question is

Which of the following matters occupies more space, assuming similar number of molecules?

A. Solid

B. Liquid

C. Gas

D. Solid and gas

To know more about the Matter, here

https://brainly.com/question/30028447

#SPJ1

Answer:

3.2

Explanation:

The missing graph is attached in the image below:

Initially, p.H from the graph is approximately 2.1

Therefore; the hydrogen ion concentration is

\([H^+] = 10^{-2.1}\)

\([H^+] = ({k_a \times 0.10})^{\dfrac{1}{2}}\)

\({k_a} = 6.3 \times 10^{ -4}\)

pKa = \(-log ( 6.3 \times 10^{-4})\)

pKa = 3.2

go play mine craft use code wild ............................

In quantum mechanics, the state of an electron in an atom is described by four quantum numbers: the principal quantum number (n), the angular momentum quantum number (l), the magnetic quantum number (m), and the spin quantum number (s).

For the outermost electrons in a single arsenic atom in its ground state, one possible set of four quantum numbers would be n=4, l=3, m=-3, s=1/2.

The principal quantum number (n) describes the energy level of the electron, with larger values of n corresponding to higher energy levels. In this example, the electron is in the fourth energy level (n=4).

The angular momentum quantum number (l) describes the shape of the electron's orbital, with values ranging from 0 to n-1. In this example, the electron is in a p orbital (l=3).

The magnetic quantum number (m) describes the orientation of the electron's orbital in space, with values ranging from -l to +l. In this example, the electron's orbital is oriented in the direction of -3 times the z-axis.

The spin quantum number (s) describes the intrinsic angular momentum of the electron, with a value of 1/2. This intrinsic angular momentum is a fundamental property of electrons and is not related to their orbital motion.

This set of quantum numbers describes one of the two electrons in the outermost shell of the arsenic atom in its ground state. Another electron in the same shell could have a different set of quantum numbers, but it would still be subject to the same overall energy and angular momentum constraints.

Learn more about quantum mechanics:

brainly.com/question/11855107

#SPJ4

Answer:

Explanation:

2.2 g/mL is the answer.

Answer:

C

Explanation: electrical energy flows through power lines.

A compound with a formula of C₉H₁₂ and a 1H NMR spectrum of delta 1.0 (t, 3 H), delta 1.7 (sextet; 2 H), delta 2.6 (t, 2 H), delta 7.2 (m, 5 H) s C₆H₅CH₂CH₂CH₃.

The method of spectroscopy known as nuclear magnetic resonance, more usually abbreviated as NMR spectroscopy or magnetic resonance spectroscopy (MRS), is used to study the local magnetic fields that surround atomic nuclei.  The sample is then placed in a magnetic field, and the NMR signal is produced by exciting the nuclei of the sample with radio waves to produce nuclear magnetic resonance.

This signal is then detected using sensitive radio receivers. Because of the change in resonance frequency brought about by the presence of an intramolecular magnetic field surrounding an atom in a molecule, it is possible to obtain information regarding the electronic structure of a molecule and the particular functional groups that it contains.

Want to know more about NMR visit the link which is given below;

https://brainly.com/question/29389817

#SPJ4

Types of energy transformations that may occur in each are heat, light, mechanical to electric, and chemical into heat and light energy.

a. Logs burn in a fire - chemical energy in the wood into heat and light energy.

b. A waterfall turns the turbine to create electricity - mechanical energy into hydroelectric energy.

c. A battery is used to power a flashlight - chemical energy into heat and light energy.

Even with the burning of timber, the chemical electricity within the wood is launched as warm due to the chemical response of wood and oxygen. This form of a chemical reaction is known as combustion and it calls for oxygen. Combustion converts the saved chemical strength inside the wood into heat and light electricity.

The regulation of conservation of power states that the amount of power is neither created nor destroyed. for example, while you roll a toy car down a ramp and it hits a wall, the power is transferred from kinetic power to capability electricity. Hydroelectric strength is additionally called hydroelectric electricity or hydroelectricity.

Learn more about energy transformations here:-https://brainly.com/question/2667612

#SPJ9

Answer:

D Cobalt

Explanation:

The volume of the sphere is  40 -25 = 15 cm^3

Density = mass/volume = 133 gm / 15 cm^3 = 8.87 gm/cm^3

  which corresponds to Cobalt from the chart

Answer:

Curium,Bohrium,Einsteinium,Lawrencium,Seaborgium,Ferminium

Explanation: